The top speed of both the Carrera and Carrera S have also increased, to 183mph and 191mph respectively. Those figures make the updated 911 well matched against the Mercedes-AMG GT, which reaches 62mph in 4.0sec and has a top speed of 189mph in standard guise (3.8sec/193mph in GT S form).
As well as providing tunable settings for the dampers and throttle mapping, the Sport Chrono package now includes a steering wheel-mounted driving mode switch that allows the driver to choose between Normal, Sport, Sport Plus and Individual driving modes.
On models with the Sport Chrono pack and PDK, an additional Sport Response button is fitted. Once pushed, the system provides maximum acceleration for 20 seconds by selecting the optimum gear.
Porsche says the facelifted 911 has already lapped the Nürburgring in 7min 34sec — more than six seconds faster than the outgoing car. The adoption of turbos has resulted in significant fuel economy gains. Porsche says its new engines are up to 12% more efficient than the units they replace.
The Carrera returns 38.1mpg in PDK guise, while the Carrera S achieves 36.7mpg. The equivalent outgoing models managed 34.4mpg and 32.5mpg respectively. A new option on the 911 Carrera is a four-wheel steer system, similar to that used by the 911 Turbo and GT3.
Porsche says the system increases agility and reduces the turning circle by 0.4m. Another option offered for the first time is a hydraulic lifting function that can raise the ride height by 40mm within five seconds.
Post-collision braking is now standard, too. Prices for the facelifted 911 range start at £76,412 for the Carrera, rising to £85,857 for the Carrera S. Cabriolet versions - which go on sale at the same time as the coupés - cost £85,253 and £94,698 respectively.
Q&A with Erhard Mossle, 911 product line director
What was behind the decision to switch to turbocharged engines?
“Our normally aspirated engine is famous, but we have the challenge of regulations on fuel consumption and also challenges from competitors. It’s getting harder to get close to them with a normally aspirated engine.”
Will buyers be happy with turbo engines?
“There will be some discussion over the next six months as customers try the car. It’s similar to when we changed from the 993 to the 996, from air-cooled to water-cooled. Customers always look for the faster car, but we are satisfied with this package.”
Is there more power to come from this engine?
“There is more power we can get; it is easier to get more power from a turbocharged engine than a normally aspirated engine. In the 911 GT3 RS, we had to go to 4.0 litres to get more power.”
Is there a place for the new four-cylinder engine family within the 911 range?
“I can’t imagine a four-cylinder in the 911.”
Read more - 2016 Porsche 911 Carrera S Cabriolet